diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index 44b59f1..107c712 100644
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -10,8 +10,8 @@ menu "Bedside clock settings"
                  string "PSK for default WiFi network"
                  default ""
           config DEFAULT_TIMEZONE
-                 string "Default timezone"
-                 default "Europe/London"
+                 string "Default timezone (TZ format)"
+                 default "UTCUTC-1,M3.5.0/1,M10.5.0/2"
           config DEFAULT_SNTP_SERVER
                  string "Default SNTP server domain"
                  default "pool.ntp.org"